Publications by authors named "KESSEL A"

A study was undertaken of the views of users of two genitourinary medicine (GUM) clinics in England on unlinked anonymous testing (UAT) for HIV. The UAT programme measures the prevalence of HIV in the population, including undiagnosed prevalence, by testing residual blood (from samples taken for clinical purposes) which is anonymised and irreversibly unlinked from the source. 424 clinic users completed an anonymous questionnaire about their knowledge of, and attitudes towards, UAT.

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Purpose: Women who carry a fragile X mental retardation 1 premutation are at risk for fragile X-associated primary ovarian insufficiency and should be counseled for a potentially reduced fertility. Multiple factors can affect the age of onset and severity of fragile X-associated primary ovarian insufficiency. In this study, we assessed the predictive power of several factors with menopausal age, a surrogate measure of onset of fragile X-associated primary ovarian insufficiency.

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Background: Carriers of a premutation (CGG repeat length 55-200) in the fragile X mental retardation (FMR1) gene are at risk for primary ovarian insufficiency (FXPOI). The anti-Müllerian hormone (AMH) level acts as a useful marker of ovarian follicle reserve and, thus, may serve to predict when this ovarian reserve becomes too low to sustain ovarian function. We investigated the intra-individual variation of AMH levels over time for premutation carriers compared with non-carriers.

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Aim: To examine whether the complexity of atopic dermatitis (AD) symptoms and the sensory modulation deficiencies (SMD) that accompany it may limit child's preference to participate in leisure activities.

Methods: Thirty-seven children diagnosed with AD and 104 healthy peers aged 6-11 years participated in this study. Disease severity was assessed using SCORAD scores.

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Aims: Papillary renal cell tumours (RCT) are characterized by specific trisomies. The aim of this study was to identify small regions of duplication marking putative tumour genes.

Methods And Results: Full-tiling path bacterial artificial chromosome (BAC) array hybridization of 20 papillary RCTs confirmed the duplication of chromosomes 7 and 17 and also displayed smaller regions of gains/amplifications of 1.

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Noonan syndrome (NS) is characterized by short stature, facial dysmorphisms and congenital heart defects. PTPN11 mutations are the most common cause of NS. Patients with NS have a predisposition for leukemia and certain solid tumors.

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Unlabelled: The transition from milk protein-induced enterocolitis syndrome to IgE-mediated milk allergy is uncommon. Herein, we describe three infants that suffered from recurrent vomiting and restlessness in response to cow's milk formula with negative skin prick to milk and therefore diagnosed as milk protein-induced enterocolitis syndrome. After recovering and reintroducing cow's milk formula, they developed disseminated urticaria and positive skin prick test to cow milk compatible with IgE-mediated milk allergy.

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An in vitro experiment was carried out to assess how nonstarch polysaccharide (NSP)-degrading enzymes influence the fermentation of dietary fiber in the pig large intestine. Seven wheat and barley products and cultivars with differing carbohydrate fractions were hydrolyzed using pepsin and pancreatin in the presence or not of NSP-degrading enzymes (xylanase and β-glucanase) and the filter retentate was subsequently fermented with sow fecal bacteria. Dry matter, starch, crude protein and β-glucan digestibilities during hydrolysis were measured.

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Recently, we identified 3' end deletions in the EPCAM gene as a novel cause of Lynch syndrome. These truncating EPCAM deletions cause allele-specific epigenetic silencing of the neighboring DNA mismatch repair gene MSH2 in tissues expressing EPCAM. Here we screened a cohort of unexplained Lynch-like families for the presence of EPCAM deletions.

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Autosomal recessive mental retardation (AR-MR) may account for up to 25% of genetic mental retardation (MR). So far, mapping of AR-MR genes in consanguineous families has resulted in six nonsyndromic genes, whereas more than 2000 genes might contribute to AR-MR. We propose to use outbred families with multiple affected siblings for AR-MR gene identification.

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Background: Although the mitotic arrest deficient protein MAD2B (MAD2L2) is thought to inhibit the anaphase promoting complex (APC) by binding to CDC20 and/or CDH1 (FZR1), its exact role in cell cycle control still remains to be established.

Methodology/principal Findings: Using a yeast two-hybrid interaction trap we identified the human clathrin light chain A (CLTA) as a novel MAD2B binding protein. A direct interaction was established in mammalian cells via GST pull-down and endogenous co-immunoprecipitation during the G2/M phase of the cell cycle.

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Background: Lynch syndrome is caused by germline mutations in MSH2, MLH1, MSH6, and PMS2 mismatch-repair genes and leads to a high risk of colorectal and endometrial cancer. We previously showed that constitutional 3' end deletions of EPCAM can cause Lynch syndrome through epigenetic silencing of MSH2 in EPCAM-expressing tissues, resulting in tissue-specific MSH2 deficiency. We aim to establish the risk of cancer associated with such EPCAM deletions.

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In the majority of colorectal cancers (CRCs) under clinical suspicion for a hereditary cause, the disease-causing genetic factors are still to be discovered. To identify such genetic factors we stringently selected a discovery cohort of 41 CRC index patients with microsatellite-stable tumors. All patients were below 40 years of age at diagnosis and/or exhibited an overt family history.

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Response to therapy as determined by minimal residual disease (MRD) is currently used for stratification in treatment protocols for pediatric acute lymphoblastic leukemia (ALL). However, the large MRD-based medium risk group (MRD-M; 50-60% of the patients) harbors many relapses. We analyzed MRD in 131 uniformly treated precursor-B-ALL patients and evaluated whether combined MRD and IKZF1 (Ikaros zinc finger-1) alteration status can improve risk stratification.

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Objective: The symptoms of allergic rhinitis (AR) are frequently evoked when individuals with AR perform daily activities. Thus, AR may interfere the optimal participation in daily life, negatively impact the patient's productivity and quality of life (QOL). While most studies refer to adult with AR, this pilot study examined participation of children with AR as expressed in their daily activity preferences.

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Introduction: Toll-like receptor-9 (TLR-9) plays an important role in the pathogenesis of systemic lupus erythematosus (SLE). The aim of this study was to evaluate the influence of intravenous immunoglobulin (IVIg) on CpG oligodeoxynucleotides (ODN-CpG) activated B cells from SLE patients.

Methods: Peripheral blood B cells were isolated from 16 SLE patients and 21 healthy age-matched controls.

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Fungi can exacerbate symptoms in patients with asthma. To our knowledge, genetic risk factors for fungal-associated asthma have not been described. We present here the cases of 6 children who carried the diagnosis of severe asthma with fungal sensitization, 3 of whom were treated with and responded clinically to itraconazole therapy.

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Angiogenesis, the growth of new blood vessels from preexisting ones, is an important process in health and disease. The persistence of neovascularization in inflammatory diseases, such as rheumatoid arthritis (RA), might facilitate the entrance of inflammatory cells into the synovium and stimulate pannus formation. Several potent pro-angiogenic cytokines have been implicated in inflammatory angiogenesis.

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Objective: To present a case of foreign body aspiration in a child with unilateral lung aplasia and successful removal of the foreign body by bedside flexible bronchoscopy.

Data Source: Case details were obtained from medical records.

Study Selection: Eighteen-month-old girl with unilateral lung aplasia.

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Background: The treatment of severe chronic urticaria (CU) remains a difficult goal to achieve. Many patients do not respond to anti-histamine therapy, even when off-label doses are given. Thus, cyclosporine-A (CsA) becomes a good therapeutic option for severe patients and for some, long-term therapy is required.

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Microcephaly, mental retardation and congenital retinal folds along with other systemic features have previously been reported as a separate clinical entity. The sporadic nature of the syndrome and lack of clear inheritance patterns pointed to a genetic heterogeneity. Here, we report a genetic analysis of a female patient with microcephaly, congenital bilateral falciform retinal folds, nystagmus, and mental retardation.

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The effects of diets supplemented with either chickpea or its main oligosaccharide raffinose on the composition of the faecal microbial community were examined in 12 healthy adults (18-65 years) in a randomised crossover intervention study. Subjects consumed their usual diet supplemented with soups and desserts that were unfortified, or fortified with either 200 g/d of canned chickpeas or 5 g/d of raffinose for 3 week periods. Changes in faecal bacterial populations of subjects were examined using 16S rRNA-based terminal restriction fragment length polymorphisms (T-RFLP) and clone libraries generated from the diet pools.

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